This one is quite tricky. It used to have a short segment after right turn before split, but since it's too short (e.g. 70 metres), the driver won't have time to react by the time such instruction was given to him if he happens to be on the wrong lane (remember Waze also has delay to react to GPS after a driver just made a 90 degree turn, so there's maybe only 30m when the keep left/keep right is given), so instead of having a keep left/keep right after the turn, I decided to give instruction in the LG on the traffic light instead (use left lane to turn right for Tuen Mun (W) and right lane to turn right for Tsuen Wan).
What do you think?

Hold on...this junction needs further verification at the spot. I am using LaneTools extension which tells me the heuristics are probably not working when there are two ramps both at the 90-degree right turn direction

It might be the reason why we are getting a UR.

I think it is acceptable with the limitation.

The driver should work out he/she is on the right ramp and align with the way finder.